Running gear for motor vehicles



Nov. 13, 1928. 1,691,742

E.v w. TEMPLIN RUNNING GEAR FOR MOTOR VEHICLES Originl Filed June 30 1921 6 Sheets-Sheet 1 mv zmqn 4 Til SW. Tem aiin ATTORNEY Nov. 13, 1928;- 1,691,742

'E. w. TEMPLIN RUNNING GEAR FOR MOTOR VEHICLES Original Filed un 50, 1921 s Sheets-Sheet {a Ill INVENTOR ATTORNEY BHis'W. Temphn, L

Nov. 13, 1928.

E. w. frzzlwn nu RUNNiNG GEAR FOR MOTOR VEHICLES Original Filed June 30 1921 6 Sheets-Sheet 3 INVENTO R Ezlhsw'lemplm,

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ATTORN EY E. w. TEMPLIN RUNNING GEAR FOR MOTOR VEHICLES Original Filed June 50 ."1921 6 Sheets-Sheet 4 INVENTOR' BllusWiTem pun,

ATTORNEY NW. 13, 1927s. mmmz E. W. TEMPLJN MOTOR YEHI CLES RUNNING GEAR FOR 1921 6 Sneaks-Sheet 5 ed June 30 Original Fil NVENTOR E'Ilis W. Tem aiin BY I 01 ATTORNEY N v, 13, 1928. am-342 E. W. TEMPLEN AR FOR MOTOR VEHICLES RUNNING es .1921 8 Sheets-sheaf. e

driginal Filed June 30 @Xys W. Twmplin,

NITED 'sTA Es I 1,691,742 PATENT OFFICE.

anus w. TEMPLIN, or PHILADELPHIA, PENNSYLVANIA, AssmNon are THE ooomman arms & RUBBER COMPANY, or AKRON, OHIO, a CORPORATION OF OHIO.

some (man roa moron vn'nrcnns.

' Orlginal'application flied June 36, 1921, Serial No 481 519. Dividedsnd this application filed November 9, 1925.

. My invention relates to motor vehicles and it has particular relation to braking mechanisms therefor.

In the manufacture of motor vehicles, particularly of the heavy-duty truck type, it has been found to be desirable to provide two front or steering wheels, and four rear or driving wheels. The four driving wheels are preferably mounted upon a small truck which is connected to the truck chassis through the chassis supporting springs, and

are therefore movable with respect thereto.

On account of the fact that the brake opcr-. ating mechanism must necessarily he mounted on the chassis, and the brakes on the wheels,

the relative movement th'erebetween, on

trucks has heretofore constructed, has interi'credwith the proper. application and release of the brakes.

One object of my invent-ion consists in providing a mechanism for braking the rear or driving wheels which is not-all'ected by the relative movement of the wheels and ,the

chassis.

5 Another object of my invention eonsistsin so coordinating the braking mechanisms on all of the vehicle wheels, including the front or steering wheels, so to simultaneously apply all of thebrakes.

A'further object of my invention is to provide a, novelsystem ot' braking -\\'li reb v the service brakes maybe locked in applied position,-and whereby the braking action thereof maybe accentuated to any desired degre 'lhisapplication is a division of my copending application, Serial No. 481,519. lilml June 30,.1921, which matured into Patent No. 1,565,526,- on December 15, 1925.

For a detailed description of my invention,

reference may now be had to the accompanying drawing, of which Fig. 1 is a side elevational viewof a motor vehicle embodying my invention;

- Fig. 2 is a. plan view on an enlarged scale,

the front portion of the chassis of the vehicle illustrated in Fig. 1;

Fig. 3 is a'. plan view illustrating the rear portion of the chassis of the vehicle illustrated in Fig. 1;

Fi 4 is a longitudinal section of the struc- 3,' the section being tare illustrated in Fig. taken-along the line'4- 4= thereof; Y

Fig. 5 is a cross-sectional view of'the front Serial No. 67,930.

wheel brake, the section being taken along theline 55 of Fig. 2;

Fig. 6 is a cross-sectional view of the rear wheel brakes, the section being taken along I the line 6'6 of Fig. 3; p i i Fig. 7 is a side elevational view of a novel type of brake interlocking mechanism incorporated in my invention;

Fig. 8 is a oross sectional view of the brake interlocking mechanism illustrated in F ig.'7, the section being taken along the line 8-8 thereof;

Fig. 9 is a transverse sectional View of a portion of the structure illustrated in Fig. 3, the section being taken substantially a dug the line )9 indicated thereon;

Fig. 10 is a fragmentary detail view on a larger scale of a portion of the brake operating mechanism; and

Fig. 11 is a sectional view taken substantially along the line 11-11 of Fig. 10. I

Referring to the drawings, the letter A Y6 designates the chassis of a motor truck, which may be of any suitable construction, andv which is supported upon -a front steering truck B, and a rear driving truck C. A body portion I) is mounted upon the chassis A, and is provided with a steering mechanism F, as shown in Fig. 1 of the drawing, but these features are merely illustrative of a complete type of vehicle, and form, per se, no part of the present invention.

The front steering truck B embodies a spring suspended axle 9, of the usual type, provided with yoked ends 10. and any well known type of steering knuckles" 11, which are connected together by means of a'rod-12, and upon which steering wheels 13. are mounted. In accordance with the present invention. each wheel 13 is equipped with a suitable brake drum 14 coneentricall mounted thereon, Disposed within eac brake drum 14 is an expansiblebrake band 15, mounted so as to movetherewith upon angular movement of the wheel. 3

, An assemblyv of a preferred arrangement of this portion of my bralii'ng system is illustrated in Fig. 5 of the drawings, and by reference thereto it will be observed that the brake band 15 is of the split expansible type arranged to operate internall of the drum.-

14. A ,casting 16, preferably. formed in 106' grally with the steering knuckle 11,-sorv to thedisk 17, whereby the path of movement of. the band 15 with respect to the disk 17 and the drum 14 is defined during its expansive and contractlve movement. To ehmmate any tendency of the band 15 to rotate with re speet to the disk 17, the disk is provided with an'abutment 21 which projects between the split ends of the band 15.

A king pin 22 couples the steering knuckle 11 between the yoked ends 10 of the axle 9 and is utilized as an actuating rod to expand the brake band 15. As shown by the dotted lines in Fig. 5, the pin 22 projects above and below the yoked ends of the axle, and is normally held in raised position by meansot tension springs 23. 'l'hese springs-are connected at their upper ends to the disk 17 by means of pins 2t, and atthcir opposite ends to the lower end of the pin 22 by means of a cross-arm 25 pivotally mounted thereon by means'of a pintle 26. Links 27, of adjustable length, are pivotally connected to the split ends of the band may means of pins 28. and to the king pin 22 by mcansof the pintle 26, whereby the brake band 15 is held from engagementwith the drum ll when the pin 22 is in its normal or raised position. Thepin 22 is depressed against the action of the springs 23 by means of a linger 29 fixed upon one end of a short shaft 30. The shaft 30 is journaled in a cap casting 31 which is rigidly secured upon the upper yoke. arm of the axle 9. A short throw lever 32 is tixedly mounted upon the opposite end of the shaft 30 whereby the shaft; aml the linger 25) may be actuated to depress the king pin 22 and cause the brake ,band to engage the drum 14 for the purpose of braking the wheel.

As best. shown in Fig. 2, the front wheel brakes are op rated by means of a brake pedal 40 disposed :uljaeent the drivers seat. The pedal 40 is connected to a transversely extending shaft-ti by means of a pivoted'link 42 and an arm 43 rigidly mounted upon the shaft 41. Upon each end oftthe shaft 41 is mounted a crank arm itJconnected, by means of a pivotally connected rod 45, to one end of a crank arm 46. which is-pivotally mounted upon the chassis A by means ofa supporting member 47. The other end of the crank arm 46 is connected to the arm 32 0f the brakin mechanism, by means ol a pivoted link 48. by reason of the fact that the cap casting 3] is stationarily mounted upon the axle 9, and. the actuating links are mounted up'on the chassis, the movement of the wheels 13 about the pin 22 as an axisin nomanncr infects the actuation ofthe front wheel brakes.

Referring now to the truck C, it

. 1,'ee1,74a

being secured to pivotally mounted upon a front axle housing I 54 by means of a pint-1e 55, and is similarly mounted upon a rear axle housing 56 by means of a pintle 57. Each of the axle housings 54 and 56 comprises a dead axle 55, upon each end of which a drive wheel 5!) is mounted'and alive axle (it) bymeans ol which the wheels 59 are driven. I

By means of a drive shaft 61, power is transmitted to the housing 54 to drive the trontpair of drive wheels 5!), and by means of a driving connection (32 between the housings 54 and 56, power is transmitted to the housing 56 to actuate the rear drive wheels as. The housings 54 and 56 are also connected together by means of a torque neutral izing mechanism (33, as described in my cop -nding application Serial No. 481,519.

As best shown in Figs. 4 and (i, the braking mechanism employed on the rear wheels comprises a brake drum rigidly mounted upon the wheel, a 'cooperaing external brake hand '71 and an additional cooperating internal .bgtakeband 72- The brake band 7 2 is of the nsual split type and is supported at its centl al point 73 upon the end of the adjacent axle housing 54 or 56, as the case may be. Itigidly mounted upon the end of the axle housing is an arm74, upon which the usual brake actuating mechanism is n'iounted. This mechanism consists of an elliptical cam 76 rigidly mounted upon one end of a shaft 77, upon the opposite end of which a brake actuating arm 78 is mounted. Also, rigidly secured uponthe shaft 77 is a m-en'iber provided with two diametrically opposite arms 80, to the ends of which tension springs 81 are secured, the opposite ends of the springs hooks '82 mounted upon the brake band 72. The tendency of the springs 81 is to maintain the member 79 in a substantially vertical position, thus maintaining the brake band 72 in its ing position.

The external brake hhnd 71 is also of the split type and is supported at the central portion by means of a supporting and adjusting member 84. which constitutes a portion of the .-arm 74... Each end of the" brake. band 71' is -provided with :1 lug 85. A brake actuating arm 86 is pivotally' mounted upon the'lower lug 8t' by means of a pin 87, and is pivotally connected at its upper end ing arm 78 by means of an arcuate connecting rod 88 of adjustable length. The upper lug 85,.is connected to the actuating arm 86 by means of a piyotally associated connecting no contracted ormm-brak-v l to the brake actuatmoved in a counter-clockwise direction about theanis of the shaft 77, it will rotate the cam 76 so as to cause the internalbrake band 72 to expand and engage the brake drum 71, and. will cause the arm 86' to tend to move aboutthe pin 87' as an axis, thus causin the connecting rod 89 to draw the upper en of the brake her 101. In 1 'band 71 toward the lower arm. The spring supporting arms 91 serve as a guide for the bra e band 71, but do not interfere with movement thereof in applying or releasing the brake. 4

In order to actuate the brake mechanism described, a connecting rod 100 is pivotally connected to each of the arms 78, the rod 100 connected to the arm 78 of the housing {:6 cxtendsforwardly and is connected in screwthreaded enga emcnt to a connecting memilie manner, the arm 100 connectd to the arm 78 of the, front housing 54 extends-,rearwardly and is connected to -21 memberlolr The arms 78 of the housings are connected to the chassis A by means of tension springs 102. It will be observed that thebrakes of the two sets of wheels lire so connested by means of the members 100 and 101 that a-forwardmovcment of the rods 100 will I serve to cause both brakes to exert a braking action upon their respective wheels, and the tension rings 102 serve to maintain normally both --rakes in a released position. '1 he connecting member 101 is.pivotally connected by means ofa pin 105 to a crank arm 106 ivotally mounted-upon a shaft 107 mounte on the bracket 51. It should be noted that the path of movement of the pin 105, and therelore of the member 101, is but relatively short, and passes directly through the axis of ,the shaft 53 about which the truck G pivots, so that irrespective of any movement of the truck about its axis, and irrespective of the relative positions of the several wheels of thc' truck, the braking action will be substantially unafiected.

The arni 106 is actuated by a lever arm 108 which is connected to a crank arm 109 by means of a pivotc'd link 110, in such manner that movement of the arm 109 in a forward direction-will serve to apply the brakes to the wheels. The crank arm is rigidly secured to lairansvcrse shaft 9 and is. actuated by mcans of a piuotally associated connecting' rod 111 which, in turn, is connccted to a crank arm 112 pivotally mounted upon an intermediately disposed cross shaft 113. The arm 112 is in turn actuated by a connecting rod 114 "Whicli ie con nccted to the shaft41 by means of arigidl'y mounted crank arm 115 a It will be observed that the brake rods 111 on each-side of the chassis are connected to theintermc diate shaft 113, but by reason of the arms 112 being rigidly secured 'thereto,0uly a single connecting rod 114 is necessary to effect a cooperative movementof the shaft 41 and the shaft-113. v r

F rom the foregoing description, it will be apparent that when the brake pedal is actuated by the driver, the shaft 41 is rotated, and by means of the brake rods the brakes onthc front wheels will be applied; and by means of the rods 111 and 114 and their associatcd mechanisms, the several brakes on each of the four rear wheels will lll' applied. By reason of the application of tho lu'akingaction on the front wheels through the king pin 22, the angular movcnu-nt. of thcsewhccls will in no manner allcct the application or the release of thebrakcs. and similarlyaby' reason of the application of the braking forccto the wheels of the truck C througl -a locus concentric with the shaft 53, the relative positions of thc rca r wheels 59 will have nocllcct upon. the application or release of'thc brakes. 'lhcrcforc, the. movement of the pedal 40 serves to applya braking action onall six wheels simultaneously, which is entirely independent of the rclativc positions of. any of the wheels or any of the housingsthcrcof.

in addition to the brake actuating foot pe al 40, l have. provided an emergency brake lever 120 rigidly mounted upon a shaft 121 which, in turn, has ri idly mounted thereon a crank arm 122. T 1c crank arm 122 has pivotally secured thereto a connecting rod 123, the opposite end of which is pivolally connected to a crank arm 124 pivotall y mount .the same circumferential path. as cooperating teeth or segments of the clutch member 1215. The clutch. tecthor segments are so arranged that when neither of the brake levers 40 or 120arc in their actuated positions, the teeth of the clutch members are in engagement. When the lever 40 is alone act uated, the teeth of the member 126 move a 'way from the teeth of the member 125) as the arm applies the brakes. \Vhen the lever is alone actuated, the teethof the member immediately forcibly engage the teeth of the member 126, thus rotating the lever llfi and applying the brakes. If the lever 40 has already been actuated, and the emergency brake lever is operated, it will move frcel y until the clutch teeth are in engagement,whereupon itassumes the pressure formerly assumed by the lever 40 and enables the operator to increase thcbralniii'g action on the wheels, by reason ofoccupying, and in alike manner the braking action will be transmitted to each of the four,-

the greater leverage afforded by the emergency brake. j

From the foregoing (IGSCI'lPtlOIl, 1t will be apparent that upon the applicationiof the brakes, a braking action will be transmitted to each of the front wheels of the truck, irrespective of the position which they are then thereto in order to increase the braking action over that obtainable by mean's'of the lever 40 alone.

Although I have illustrated but one form which my invention may assume, and have descr1bcd in detail but one application thereof,

it will be apparent to those skilled in the art that it is not so limited but that minor modilications and changes may be made therein without departing from the spirit of my invention or the scope of the appended claims.

lVhat I claim is:

1.- In a motor vehicle. the combination with a chassis, including a driving truck mounted to oscillate thereon about a horizontal axis, of a plurality of axles for the truck, a housing for each axle, individual brake mechanisms for the truck wheels mounted upon the associated housings, reach rods pivoted togcther adjacent the axis of oscillation of the truck and connecting the brake mechanisms o i all the wheels on one side of the truck, and" devices upon the chassis operable to move the pivot of the reachrods into concentric rela f hon with said axis of oscillation to set said brake mechanisms.

2. In a motor vehicle, the combination with a chassis, of a driving truck element resiliently mounted thereon to oscillate about a substantially horizontal axis and comprising a plurality of wheel carrying axles a plurality of brake elements, a pivoted throw lever having its pivot arranged in substantially fixed relation-to the chassis, and draw links connecting the brake mechanisms respectively to the'throw lever at a point adapted to move in an arc intersecting the. axis of oscillation of the truck'elemen of a plurality of axles for. the truck, wheels mounted upon the axles, Individual brake mechanisms for the truck wheels mounted 'Ilevcr provided with a clutch face adapted upon the housings, reach rods pivoted together adjacent said axis of oscillation connecting the brake mechanisms of each housing, and'd evices upon the chassis operable" to move the pi'votof the reach rods into concentric relation with saidv axis otoseiillation to simultaneously set said brake mechanisms. o

4. In, a motor vehicle, the combination with achassis, including a driving tr'uck mounted devices upon the chassis operable to move the.

pivotal connection into concentric relation with said axis to simultaneously set said braking units.

a chassis, including front steering wheels, of a driving truck' comprising a plurality of wheel carrying axles mounted upon the chassis to oscillate as a unit about a horizontal axis, a housing for each axle, individual brake mechanisms for each truck wheel,

5. In a motor vehicle, the combination with means pivotally connecting the brake mechanisms of each housing at a point adjacent said axis of oscillation, devices upon the chassis operable to move said" pivotal connection into concentric relation with said axis to set said brakes, individual brake mecha pism for each steering wheel adapted to swing therewith, and brake control elements con-, necting said devices and the front wheel brake mechanisms for simultaneous operation.

6. In a motor vehicle, the combination with a chassis, including front steering wheels, of a driving truck comprising a pluralit of wheel carrying axles mounted upon the c assis-to oscillate as a unit about a horizontal axis, a housing for each axle, individual brake mechanisms for each truck wheel mounted upon each housing, means pivotally connecting the brake mechanisms of each housing at a point adjacent said axis of oscillation, devices upon the chassis operable to' move said pivotal connection into concentric relation with said axis to set said brakes, individual bralte"inecliiinismi fmeach steering wheel adapted" to swingther'ewith, and brake control el'en'i'ents connecting said devices and the frontlwheel brake "mechanisms for simultaneous'operation. i

'T."In"'a motor rctly to said braking mechanism I and.prov1ded w1th a clutch face,

a-second actuating to cooperate with said first mentioned clutch face to actuate said' braking mechanism through the first mentioned lever.

H vehicle, wheel braking mechanism, an actuating lever connected'di- 3. In a'motor vehicle, the combination with a chassis, including adriving truck mounted? to oscillate thereon about a horizontal axis,

- wheels, bra e adapted to permit manual actuation of the ,a wheel braking first mentioned lever independentl of the second, but to cause actuation of the rst lever on manual actuation of said second lever.

chassis supported upon a relatively mova 'le truck element comprising a lurality of axles, wheels mounted on'theax es, brake mechanisms associated with the wheels, a brake actuating member mounted on'the chassis, and means connecting the brake actuating member to the braking mechanisms, said means being adapted to transmit force from the brake actuating member tothe braking mechanisms substantially unafi t-cted b the relative movement of the chassis am? the truck element.

10. In a 'motor vehicle, a chassis, a relatively movable truck element provi ed with a plurality of axles having wheelsmount'ed thereon, bi-akin mechanism associated with the actuating mechanism mounte on the chassis, and means connecting the braking mechanism and the brake actuatin mechanism at a poirit'substantially unafiecte by the'relative movementoi the chassis and the truck element I 11. In a motor vehicle, a chassis, a truck elementpivotally connected to said chassis and provided with a plurality of axles having wheels mounted thereon, braking mechanism associated with the wheels, a brake actuating mechanism mounted on the chassis and havin a brake operating rod connected thereto, said .rod being connected with said braking mechanism at'a point the movement of which is substantially unaffected by movement of the truck element about its pivotal axis.

12. In a motor vehicle, a chassis, a truck element provided with a plurality of axles having wheels mounted thereon, the truck element being connected to the chassis through a pivotal connection fixed with respect to said chassis, brakingl mechanism asw eels, means for sociated with each of the operating said braking mechanism, and brake "actuating means pivotally mounted on the chassis and pivotally connected to brake operating means at a point substantially unaffected by the movement of the truck element about its point of pivotal connection to the chassis.

13. In a motor vehicle, a chassis, a trucli element pivotally connected to the chassis by means of springs and comprising a plural ity of axles, road engaging wheels mounted on the axles and having braking mechanisms associated therewith, a brake operating rod connected to each of the wheel braking mechanisms, a brake actuating lever pivotally mounted on the chassis and pivotally connected to the brake operating rod, the point of connection of the braking mechanism and the rod being in substantial alignment with the axis of the pivotal connection between the chassis and the truck.

In witness whereof, I have hereunto signed my name.

, ELLIS W. TEMPLIN; 

